Pass JS File object to Agent

[sorz]

Hi,

I'm trying to migrate a existing JS app to yew, which process (potentially) large files with web workers on background.
If I understood it correctly, I should implement an Agent to do the work.

In the plain-old web-worker way, I pass the File object I got from form to the web worker, then read it with FileReader inside that worker. However, the File object does not implement Serialize/Deserialize, so I cannot pass it to Agent.

Is there a way to pass File object cross Agent? Or I have to read the content of file first, then pass the content to other Actor? Or, there is other way to offload CPU expensive tasks without relying on Actor?

Thanks.